Quantitative Research

TWSE Foreign Holding Weekly (Jul 3rd): TSMC, UMC, Hon Hai Precision, Macronix Intl

03 Jul 2026 By Ke Yan, CFA
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Abstract: We analyzed TWSE foreign holding data as of Jul 3rd, covering stocks with market cap above USD100m. Total foreign holdings stood at USD2,312bn, up from USD2,205bn the prior week, an increase of USD107bn (4.9% WoW), broadly in line with the TWSE index gain of 5.0%. Despite the holdings value increase driven by price appreciation, we estimate net foreign flows were outflows of USD5,528m for the week. The largest outflow was TSMC (2330 TT) at -USD2,419m, followed by Hon Hai Precision (2317 TT) at -USD540m, Macronix Intl (2337 TT) at -USD484m, and Kinsus Interconnect Technology (3189 TT) at -USD388m. On the inflow side, UMC (2303 TT) led with +USD655m, followed by Cathay Financial (2882 TT) at +USD333m and Fubon Financial (2881 TT) at +USD312m.

TSMC (2330 TT) Hon Hai Precision (2317 TT) UMC (2303 TT) Macronix Intl (2337 TT) Kinsus Interconnect Technology (3189 TT)

Highlighted Stocks

TSMC, Hon Hai Precision, UMC, Macronix Intl, Kinsus Interconnect Technology

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